The slides in the photo look like the ones on our Sunseeker. I may not be able to clearly describe the method, but I'll try.
The drawer stop is on the drawer part of the slide. The release is the tapered pin that sticks out from under the sliding part, towards the cabinet. Push the pin on one side of the drawer up and the pin on the other side down, holding them as you pull the drawer out.
The slides are the same so they are in effect opposite hand. It helps to push the drawer in slightly off the stop. I never remember which way the pins have to be moved. If you look closely you may figure out which way. If not, try to push one pin both up and down until you get it to release. Then push the one on the other side the opposite way.
2011 Sunseeker 3100
1997 Pathfinder Toad